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-rw-r--r--activerecord/lib/active_record/relation/finder_methods.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb
index 1da7411589..51ba17c9be 100644
--- a/activerecord/lib/active_record/relation/finder_methods.rb
+++ b/activerecord/lib/active_record/relation/finder_methods.rb
@@ -290,7 +290,7 @@ module ActiveRecord
def find_one(id)
id = id.id if ActiveRecord::Base === id
- column = primary_key.column
+ column = columns_hash[primary_key.name.to_s]
substitute = connection.substitute_for(column, @bind_values)
relation = where(primary_key.eq(substitute))